diff --git a/mirrortea/__init__.py b/mirrortea/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/mirrortea/abstract_source_platform/telegram.py b/mirrortea/abstract_source_platform/telegram.py
deleted file mode 100644
index 5c4e383..0000000
--- a/mirrortea/abstract_source_platform/telegram.py
+++ /dev/null
@@ -1,24 +0,0 @@
-import sys
-import aiogram as telegram
-
-from abstract_source_platform.abstact_source_platform import (
-    AbstractSourcePlatform,
-)
-from models.user import User
-
-
-class Telegram(AbstractSourcePlatform):
-    def __init__(self, app):
-        self.app = app
-        self.bot = telegram.Bot(token=app.config.telegram_bot_token)
-        self.dispatcher = telegram.Dispatcher(bot=self.bot)
-        self.dispatcher.register_message_handler(self.on_message)
-
-    async def run(self) -> None:
-        await self.dispatcher.start_polling()
-
-    async def on_message(self, msg):
-        print(msg, file=sys.stderr)
-
-    async def get_user_information(self) -> User:
-        pass
diff --git a/mirrortea/matrix.py b/mirrortea/matrix.py
deleted file mode 100644
index 061b4a3..0000000
--- a/mirrortea/matrix.py
+++ /dev/null
@@ -1,35 +0,0 @@
-import nio as matrix
-import sys
-
-
-class MatrixLoop:
-    def __init__(self, app):
-        self.app = app
-        self.client = matrix.AsyncClient(
-            app.config.matrix_homeserver_url,
-            app.config.matrix_full_bot_id,
-        )
-        self.client.add_event_callback(self.on_message, matrix.RoomMessage)
-
-    async def prepare(self):
-        await self.client.login(self.app.config.matrix_bot_password)
-
-    async def finish(self):
-        await self.client.close()
-
-    async def run(self):
-        await self.client.sync_forever(timeout=30000)
-
-    async def on_message(self, room, event):
-        print(room, event, file=sys.stderr)
-
-    def upgrade_room(self, room, telegram_nickname):
-        event_dict = matrix.event_builders.event_builder.EventBuilder(
-            name=telegram_nickname
-        ).as_dict()
-        client.room_send(
-            room_id=room,
-            message_type=event_dict["type"],
-            content=event_dict["content"],
-        )  # предположу что оно так работает
-        # https://matrix-nio.readthedocs.io/en/latest/nio.html#module-nio.event_builders.state_events
diff --git a/mirrortea/models/matrix_room.py b/mirrortea/models/matrix_room.py
new file mode 100644
index 0000000..420fb96
--- /dev/null
+++ b/mirrortea/models/matrix_room.py
@@ -0,0 +1,11 @@
+from typing import Optional
+from pydantic import BaseModel
+
+from mirrortea.models.user import User
+
+
+class MatrixRoom(BaseModel):
+    """"""
+
+    matrix_room_id: str
+    connect_to_user: User
diff --git a/mirrortea/models/user.py b/mirrortea/models/user.py
index e8315e5..8c977a9 100644
--- a/mirrortea/models/user.py
+++ b/mirrortea/models/user.py
@@ -8,8 +8,8 @@ class User(BaseModel):
     """
 
     first_name: str
-    last_named: Optional[str]
+    last_name: Optional[str]
 
-    id: str
+    user_id: str
     username: Optional[str]
     avatar_hash: Optional[str]
diff --git a/mirrortea/repository/__init__.py b/mirrortea/repository/__init__.py
index 53fd20a..9ee09a1 100644
--- a/mirrortea/repository/__init__.py
+++ b/mirrortea/repository/__init__.py
@@ -1,5 +1,5 @@
-from repository.sqlite_repository import (
+from .sqlite_repository import (
     SQLiteDatabaseRepository,
 )
 
-repository = SQLiteDatabaseRepository()
+repository = SQLiteDatabaseRepository
diff --git a/mirrortea/repository/abstract_db_repository.py b/mirrortea/repository/abstract_db_repository.py
index a0fd9fc..2b98deb 100644
--- a/mirrortea/repository/abstract_db_repository.py
+++ b/mirrortea/repository/abstract_db_repository.py
@@ -1,7 +1,34 @@
 from abc import ABC, abstractmethod
 
+from ..models.matrix_room import MatrixRoom
+from ..models.user import User
+
 
 class AbstractDatabaseRepository(ABC):
     @abstractmethod
     def create_tables(self) -> None:
         """Init tables in database"""
+
+    @abstractmethod
+    def create_user(self, user: User) -> User:
+        """"""
+
+    @abstractmethod
+    def get_user_by_id(self) -> User:
+        """"""
+
+    @abstractmethod
+    def delete_user(self) -> None:
+        """"""
+
+    @abstractmethod
+    def create_matrix_room(self) -> MatrixRoom:
+        """"""
+
+    @abstractmethod
+    def get_matrix_room(self) -> MatrixRoom:
+        """"""
+
+    @abstractmethod
+    def delete_matrix_room(self) -> None:
+        """"""
diff --git a/mirrortea/repository/exceptions.py b/mirrortea/repository/exceptions.py
new file mode 100644
index 0000000..65650fc
--- /dev/null
+++ b/mirrortea/repository/exceptions.py
@@ -0,0 +1,14 @@
+class UserNotFoundError(Exception):
+    """User not found!"""
+
+
+class UserAlreadyExistError(Exception):
+    """Token already exits!"""
+
+
+class MatrixRoomNotFoundError(Exception):
+    """Matrix room not found!"""
+
+
+class MatrixRoomAlreadyExistError(Exception):
+    """matrix room already exits!"""
diff --git a/mirrortea/repository/sqlite_init_tables.py b/mirrortea/repository/sqlite_init_tables.py
index be530c6..9bff2c2 100644
--- a/mirrortea/repository/sqlite_init_tables.py
+++ b/mirrortea/repository/sqlite_init_tables.py
@@ -1,27 +1,27 @@
-TELEGRAM_USER_MATRIX_CHATS_SQL = """
-CREATE TABLE IF NOT EXISTS telegram_user_matrix_chats (
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    telegram_user_id INTEGER NOT NULL,
-    matrix_chat_id INTEGER NOT NULL,
-    FOREIGN KEY(telegram_user_id) REFERENCES telegram_users(id),
-    FOREIGN KEY(matrix_chat_id) REFERENCES matrix_chats(id)
-);
-"""
+# PLATFORM_USER_MATRIX_CHATS_SQL = """
+# CREATE TABLE IF NOT EXISTS platforms_user_matrix_chats (
+#     id INTEGER PRIMARY KEY AUTOINCREMENT,
+#     plstform_user_id INTEGER NOT NULL,
+#     matrix_chat_id INTEGER NOT NULL,
+#     FOREIGN KEY(platform_user_id) REFERENCES platforms_users(id),
+#     FOREIGN KEY(matrix_chat_id) REFERENCES matrix_chats(id)
+# );
+# """
 
-TELEGRAM_USERS_SQL = """
-CREATE TABLE IF NOT EXISTS telegram_users
+PLATFORMS_USERS_SQL = """
+CREATE TABLE IF NOT EXISTS platforms_users
 (
-   id INTEGER PRIMARY KEY NOT NULL (15),
-   first_name TEXT NOT NULL (50),
-   last_name TEXT (50),
-   username TEXT (50),
-   avatar_hash BLOB,
+   user_id INTEGER(100) PRIMARY KEY NOT NULL,
+   first_name TEXT(100) NOT NULL,
+   last_name TEXT(100),
+   username TEXT(100),
+   avatar_hash BLOB
 );
 """
 
 MATRIX_ROOMS_SQL = """
-CREATE TABLE IF NOT EXISTS telegram_users
+CREATE TABLE IF NOT EXISTS matrix_rooms
 (
-    id TEXT PRIMARY KEY NOT NULL
+    matrix_room_id TEXT(100) PRIMARY KEY NOT NULL
 );
 """
diff --git a/mirrortea/repository/sqlite_repository.py b/mirrortea/repository/sqlite_repository.py
index 65ce56c..d8337b1 100644
--- a/mirrortea/repository/sqlite_repository.py
+++ b/mirrortea/repository/sqlite_repository.py
@@ -1,31 +1,103 @@
 import sqlite3
-from pathlib import Path
 from typing import Optional
+from collections import namedtuple
 
-from repository.abstract_db_repository import AbstractDatabaseRepository
+from mirrortea.repository.abstract_db_repository import AbstractDatabaseRepository
 
-from repository.sqlite_init_tables import (
-    TELEGRAM_USER_MATRIX_CHATS_SQL,
-    TELEGRAM_USERS_SQL,
+from mirrortea.models.matrix_room import MatrixRoom
+from mirrortea.models.user import User
+
+from mirrortea.repository.exceptions import (
+    UserNotFoundError,
+    MatrixRoomAlreadyExistError,
+    MatrixRoomNotFoundError,
+    UserAlreadyExistError,
+)
+
+from mirrortea.repository.sqlite_init_tables import (
+    # PLATFORM_USER_MATRIX_CHATS_SQL,
+    PLATFORMS_USERS_SQL,
     MATRIX_ROOMS_SQL,
 )
 
 TABLES_LIST = [
-    TELEGRAM_USER_MATRIX_CHATS_SQL,
-    TELEGRAM_USERS_SQL,
+    # PLATFORM_USER_MATRIX_CHATS_SQL,
+    PLATFORMS_USERS_SQL,
     MATRIX_ROOMS_SQL,
 ]
 
+PATH_TO_DB = "database.db"
+
 
 class SQLiteDatabaseRepository(AbstractDatabaseRepository):
-    def __init__(self, app, path: Path):
+    def __init__(self, path=PATH_TO_DB):
         self.path = path
-        self.conn = sqlite3.connect(path)
+        self.conn = sqlite3.connect(self.path)
+        self.cursor = self.conn.cursor()
+
+    def _namedtuple_factory(cursor, row):
+        fields = [column[0] for column in cursor.description]
+        cls = namedtuple("Row", fields)
+        return cls._make(row)
 
-    @staticmethod
     def create_tables(self) -> None:
         """Init tables in database"""
 
         for table in TABLES_LIST:
             self.conn.execute(table)
         self.conn.commit()
+
+    def get_user_by_id(self, user_id: str) -> User:
+        """Get user by user id"""
+
+        self.conn.row_factory = self._namedtuple_factory
+        self.cur_userdata = self.conn.execute(
+            "SELECT user_id AS user_id, first_name AS first_name, last_name AS last_name, username AS username, avatar_hash AS avatar_hash FROM platforms_users WHERE user_id = ?",
+            (user_id,),
+        )
+
+        self.userdata = self.cur_userdata.fetchone()
+
+        if self.userdata == ():
+            return UserNotFoundError("User not found!")
+
+        return User(
+            id=user_id,
+            first_name=self.userdata.user_id,
+            last_name=self.userdata.first_name,
+            username=self.userdata.username,
+            avatar_hash=self.userdata.avatar_hash,
+        )
+
+    def create_user(self, user: User) -> User:
+        """Create user"""
+        try:
+            self.cursor.execute(
+                "INSERT INTO platforms_users VALUES (?, ?, ?, ?, ?)",
+                (
+                    user.user_id,
+                    user.first_name,
+                    user.last_name,
+                    user.username,
+                    user.avatar_hash,
+                ),
+            ).fetchall()
+
+        except sqlite3.IntegrityError:
+            return UserAlreadyExistError("User already exist!")
+
+        self.conn.commit()
+
+        return self.get_user_by_id(user_id=user.user_id)
+
+    def delete_user(self) -> None:
+        """"""
+
+    def create_matrix_room(self) -> MatrixRoom:
+        """"""
+
+    def get_matrix_room(self) -> MatrixRoom:
+        """"""
+
+    def delete_matrix_room(self) -> None:
+        """"""
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test_repository.py b/tests/test_repository.py
new file mode 100644
index 0000000..4cb36c6
--- /dev/null
+++ b/tests/test_repository.py
@@ -0,0 +1,39 @@
+import pytest
+import os
+
+from mirrortea.models.user import User
+from mirrortea.repository import repository
+
+
+PATH = "tests/test_database.db"
+
+
+def create_repository_object():
+    return repository(PATH)
+
+
+def test_create_tables():
+    os.system("rm -rf " + PATH)
+    repo = create_repository_object()
+    assert repo.create_tables() is None
+
+
+def test_get_user_by_id():
+    repo = create_repository_object()
+    assert repo.get_user_by_id(user_id="123") is None
+
+
+def test_create_user():
+    repo = create_repository_object()
+    assert (
+        repo.create_user(
+            User(
+                user_id="123",
+                first_name="dettlaff",
+                # last_name=None,
+                # username=None,
+                # avatar_hash=None,
+            )
+        )
+        is None
+    )